I am making a skywars map and I am almost finished, I just need to teleport players with the deathCount of 1 back to the islands while turning them into gamemode 3 (spectator). Is there a way to only teleport the dead players, but keep the alive players still at their places? I don't want to use a fake player or anything, I just need the tag for the scoreboard that isn't [team="team name"]. I need something to testfor the deathCount objective on the scoreboard.
For example, with
/testfor @a[Q=1] with Q as deathCount, what would Q be?